Firecracker:今年非常值得关注的一个虚拟化技术,由 Amazon 出品。 - 内核态依然是 KVM,但用户态可以用它替换 QEMU - 本身提供一套 API,这样连 libvirt 也可以省掉,直接可编程实现虚拟机管理 - 将两层变为一层,从而降低了复杂度 - OS 上,直接 kernel + rootfs,这点类似 Docker
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但 Docker 是跟宿主机共用 kernel - 使用 Rust 实现,所以在性能上有不俗的表现 - 可以实现非常轻量级的虚拟机,官方称为 microVM - 要是配套工具跟上,那就有意思了 (https://github.com/firecracker-microvm/firecracker …)
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Replying to @linuxtoy
it comes from G's crosvm. multiple uVM could share kernel memory map (so no need (U)KSM). rust has no relationship with perf. ignoring kernel memory sharing part, I would prefer Intel's qemu-lite so things in qemu world can be reused.
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Ah, qemu-lite is rebranded to nemu.
7:10 PM - 13 Mar 2019
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